Engine appliance.



J. W. JEPSN.

ENGINE APPLIANCE. i APPLlcMmn msn Aus. I3. |912.

1,240,725. Patented sept. 18, 1917.

UNITED sTATEs PATENT OFFICE.

JOHN' W. JEPSON, 0F DEPEW, NEW YORK, ASSIGNOR T0 GOULD COUPLER COMPANY,A CORPORATION 0F NEW YORK.

ENGINE APPLIANCE.

Specification of Letters Patent.

Patented Sept. 18, 1917.

To all 'whom 'it may concern:

'13e it known that I JOHN W. Jnrson, a citizen of the United States, anda resident of Depew, county of Erie, and State of New York, haveinvented certain new and useful Improvements in Engine Appliances, ofwhich the following is a specification.

My invention relates to engine appliances and more particularly toarrangements inalud-ing an internal combustion engine and storagebattery and dynamo electric appa-- ratus so arranged that the dynamoelectric apparatus may be used for transmitting energy from the engineto charge the battery and from the battery to start the engine.

The main object of my invention is to provide a. simple arrangement forthis purpose in whic the engine may be easily started with theemployment of a minimum 4amount of energy and in which the interchangeor change of gears for this purpose is rendered unneceary. Furtherobjects,

featuresand advantages will more clearly appear from the detaileddescriptiqn given below taken in onnect'ion with the accomanying drawingwhich shows a diagram illustrating an arrangement embodying my imrovements in one form.

eferring to the drawing, 1-1 represent cylinders of an internalcombustion engine of the gas engine type in which operate pistons 2-2operatively connected with the Secured on the shaft 3 is which in turndrives a gear 6 on shaft 7.

Driven by shaft 7 is a pump 8 for the purpose of circulating the coolingwater for the engine. Also secured to the shaft 7 is the amature 9 of adynamo, which isprovided with two sets of armature windings connectedrespectively to commutators 10 and 11. 12 re resents a set of shuntfield wind- .ings for t e dynamo, and 13 a set of series field windingstherefor. 14 represents a storage battery in operative relation to thedynamo electric apparatuspnd having lamp or other translating devices 15connected across theterminalsby conductors 16. 17 re resents a mainswitch coiinected in series etween the battery and dynamo electricapparatus and provided with a shunt operating coil 18 and a reverseseries coil 19, the switch operating in any usual or well knownmanalternating current circuit 22 having in series therein the primaryof a transformer 23. Connected in series with the circuit 22 is also atiming device 24 of any well known sort. The cylinders 1-1 of the engineare provided with jump spark devices 25 which are connected byconductors 26 with a distributor 27 of any well known kind, and thesecondary of the transformer 23 has one terminl thereof connected to thedistributer 27 while the other terminal is grounded to the engine byconductor 28.

In order to provide an arrangement whereby the dynamo electric apparatusmay supply suicient voltage to supply the hat' tery when being driven bythe engine and in which the dynamo electric apparatus may havesufficient torque to start the engine when supplied from the battery, Iprovide switching means for connecting the two sets of armature windingsin series when chargin'g the battery and in arallel when it is desiredto start the engine. These switching means also connect the series field13 to o pose the shunt ield 12 when charging the attery, 'but aid theshunt field 12 when starting the engine. For this purpose a multip epole switch having three arms 30, 31 and 32, is provided which arms areadapted to make contact respectively with contacts 33, 34 and 35. Thearms 30, 31 and 32 are connected by a link member 36 for simultaneouslyoperating the saine.,1

When the arms are in the position s own in full lines the apparatus isconnected for starting the engine by energy transmitted from thebattery. In such case thedirection of current from the battery isindicated by the arrows 37.

Starting from tliebattery the circuit leads through conductor 38, seriesfield 13, conductor 39, through the varmature windings connected tocommutator 10, through condoctor 40, thence through conductor 41, switcharm 30, contact '33 and conductor 42, back to the opposite side of thebattery. This connects one set of armature windings and the series fielddirectly'across the battery, so that this part of the apparatus acts ichas a series motor. The other set of armature windings is connectedacross the battery through the conductor 3S, series field 13, conductor43, switch arm 32, conductor 44, 5 thence through the armature windingsconnected to commutator 11, conductor 45, contact 34, and switch arm 31,thence through conductor 41, switch arni 30, contact 33, and .conductor42, back to the opposite side of 1g the battery. Of course these sets ofarmature windings connected to the commutntor 11 also act under theinfiuence of the series field 13 as well as the' shut field 12 theswitch 20 being closed. 15 With the switch in this position, energy isfurnished by the. battery to startthe engine, the motor producingsufficient torque with these connbctions, for this urpose. After theengine has attained su cient speed the 2g switch arms 30,' 31 and 32 arethrown in the position indicated invdotted lines, so that the dynamo isconnected across the battery. throlI h the following circuits, thedirection o charging current being indicated by the arrows 46. From thenegative side of the battery, through conductor 42, conductor 47, coil19, main switch 17, conductor 48, thence through the armature windingsconnected to commutator 11, 3o thence 4thrmgh conductor 44, contact 35,switch arm'31, conductor '40,l thence through amature windin connectedto commutator 10, thence throug conductor 39, series ield 13 andconductor 38, back to the opposite side of the battery;

It will be noticed that with this arrangement of connectionsthe currentin the series field is in the reverse direction so that it opposes theshunt field 12 and acts as a 40 regulatin ,field for maintaining thecurrent output o the generator substantially constant. When the engineand dynamo attain suiicient` eed to charge the battery the main switc 17closes under the action of 46 voltage coil 18. Current passing throu hthe coil 19 charging the battery or supp ying the lamps, mds the coil 18in maintain- .ing the switch closed. Upon a decrease .in speed andvoltage of the dynamo, if the 50 batterytends to send current backthrough the generator, the current in coil 19 opposes the current-incoil 18 and causes the main switch vto open.

By. arranging the sets of amature wind- Y ings .1n series sutlicientvoltage is produced to char the battery and yet a suiiicient torque 1sproduced upon connecting 'these armature windings -in parallel tostartthe engine witha small battery voltage. Ijt is 6o not `necessary tothe broader aspectsf.' -Indy invention that both sets of armature wiings be upon the same ma etic structure,

as obviousl more or less satisfactory results may be o tained by otherarrangements. e5 However, it is far better to have them upon mechanicalvy `connected 'drive the same' and be driven thereby, a 12o the samemagnetic structure as more space is saved thereby. f

In order that the engine may be more easily started and with less enerry, I provide meansfor automatically relieving the 7o pressure withinthe cylinders 1-1 when it is desired to start the engine. For thispurpose pct cocks 50 are provided which are designcd to be opened uponthrowing the switching arms 2&0, 31 and 32 to the position shown in thefull lines, that is, when it is desired to start the engine.- For thispu 1 pose the link 36 is connected by' means of bell crank lever 51 :1ndlinks 52 and 53, with the valves of; the pet cocks, to open same whenthe switching arms are thrown, to start the engine. Obviously, ang,other suitable means or connecting devices may be provided whereby thepressure of the en 'ne isrelieved. when itis desired to start t eengine. Upon -throwing the switch arms to the position shown in dottedlines the pet cocks 50 are closed so that the engine at once picks upunder its own power, so that it wil d rive the dynamo and charge thebattery.V l

Although 1 have described my improvements in great detail and withrespect to one particular embodiment thereof, never;

theless I do not desire to be limited to such details' except as clearlyspecified in the a 9a pended claims since many changes and'vm ficationsmay well be' made 4Without depart-f ing from the spirit and scope of my'invention-in its broader aspects. 10G

Having fully and clearly described -my t improvements, what I claim asnew and desire to secure by Letters Patent, is: f

1. The combination of an internal combustion engine, a dynamomechanically connected to the engine shaft, a.storage battery inoperative relation to the d na'mo` whereby energy may be transmitte fromthe engine to charge the battery andfrom the battery to start theengine, said dynamoun having two sets of amature windings, and switchingmeans for connectingsaid sets of windings in sries when charging thebattery and in parallel when starting the'. engine and for relieving thepressure in the v engine cylinders when starting the engine.

2, The combinationof an internal combastion en ne, dynamo electricapparatus to the engine to.

storage "cattery in operative relation to said dynamo electric a paratuswhereby energy may be transmitte rom the engine tocharge Y the batteryand from the battery to start the engine, said dfynamo electricapparatus havin two sets o armature w din and switchm means for4connectin Said sets of windmgs in series when Achar the battery and inparallelwhen starting the" engine, electric ignition devices for theengine, a distributor for said ignition devices, and connections forsupplying the distribliter -from the dynamo with alternating currentwhen the armature windings are connected in series.

3. The combination of an en ine, dynamo electric apparatus mechanical y'connected to the engine to drive the same and be driven thereby, astorage battery in' operative relation to said dynamo electric apparatuswhereby energy may be transmitted from the engine to charge the batteryand from the battery to start the engine, said dynamo -electricapparatus having two sets of armature windings, a shunt field windingand a series field winding, and switching means for connecting said setsof armature windings in series when charging the battery and in parallelwhen starting the engine, said series winding being so connectedas tooppose the shunt winding when charging the battery and to aid the shuntWindin when starting the engine.

4. The com ination of an internal combustion en 'ne, a dynamomechanically connected to t e engine to drive the same and be driventhereby, a storagebattery in operative relation to said dynamo wherebyenergy may be transmitted from the engine to charge the battery and fromthe battery to start the engine, said dynamo having two sets of armaturewindin 'a shunt field winding and a series fiel winding, and switchingmeans for connecting said sets of armature windings in series whencharging the battery and in parallel when starting the engine, saidseries winding bein so connected as to oppose the shunt win ing whenchar ing the battery and to aid 4the shunt win ing when starting theengine.

5. The combination of an en ine, dynamo electric apparatus mechanicaliyconnected to the e gineto drive the same and be driven tlilareby, astorage battery in operative relation to said dynamo electric apparatuswhereb ener may be transmitted from the engine toc arge the battery andfrom the battery to start the engine, said dynamo electric apparatushaving two sets of armature windings, switching means for connectingsaid sets of wndingsin series when charging the battery and in parallelwhen starting theengine -means for relieving the as pressure in t en inecylinder or cylin ers, and means whereiiy operation of said switchingmeans causes the opera-` tion of said pressure-relieving means.

6. The combination of an internal combustion engine, a dynamomechanically connected to the engine to drive the same and be driventhereby, a Stora e battery in operative relation to said ynamo wherebyenergy may be transmitted from the engine to charge the battery' andfrom the battery to start the engine, said dynamo having two sets ofarmature windings, switching means for connecting said sets of windin inseries when charging the battery andin parallel when starting theengine, means for relieving the gas pressure in the engine cylinder orcylinders, and connections from said switching means to saidpressure-relieving means whereby, when the switchin means is operated ttconnect the sets o armature windings in parallel, the rassurerel-ievingmeans is operated to re ieve the pressure in the cylinder-or cylindersof the en ine.

The combination of an internal combustion engine, dynamo electricapparatus mechanically connected to drive the engine and be driventhereby, a storage apparatus in operative relation thereto, wherebyenergy may be transmitted from the engine to charge the storageapparatus, and from the storage apparatus to start the engiiie,`

said dynamo electric a paratus having two sets of armature win ings, andswitching means for connecting said sets of windings in series whencharging the storage appa-4 ratus, and in arallel when starting theengine, and said dynamo having a shunt and series field winding, whichact cumulatively when starting the engine.

In testimony whereof, I have signed my name to this .s eciication, inthe presence of two subsci'i ing witnesses.

JOHN W. JEPSON.`

Witnesses:

L. Mii'rzmi, P. YW. ENGLISH.

